$ rvm reinstall ruby-2.2.4
ruby-2.2.4 - #removing src/ruby-2.2.4..
ruby-2.2.4 - #removing rubies/ruby-2.2.4..
Searching for binary rubies, this might take some time.
No binary rubies available for: osx/10.9/x86_64/ruby-2.2.4.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for osx.
Certificates in '/usr/local/etc/openssl/cert.pem' are already up to date.
Requirements installation successful.
Installing Ruby from source to: /Users/JAckerman/.rvm/rubies/ruby-2.2.4, this may take a while depending on your cpu(s)...
ruby-2.2.4 - #downloading ruby-2.2.4, this may take a while depending on your connection...
ruby-2.2.4 - #extracting ruby-2.2.4 to /Users/JAckerman/.rvm/src/ruby-2.2.4....
ruby-2.2.4 - #applying patch /Users/JAckerman/.rvm/patches/ruby/2.2.4/fix_installing_bundled_gems.patch.
ruby-2.2.4 - #configuring..........................................................
ruby-2.2.4 - #post-configuration.
ruby-2.2.4 - #compiling.............................................................
ruby-2.2.4 - #installing............
Error running '__rvm_make install',
showing last 15 lines of /Users/JAckerman/.rvm/log/1454705088_ruby-2.2.4/install.log
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems/dependency_installer.rb:3:in `<top (required)>'
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/src/ruby-2.2.4/lib/rubygems.rb:556:in `install'
    from ./tool/rbinstall.rb:722:in `block (2 levels) in <main>'
    from ./tool/rbinstall.rb:721:in `each'
    from ./tool/rbinstall.rb:721:in `block in <main>'
    from ./tool/rbinstall.rb:757:in `call'
    from ./tool/rbinstall.rb:757:in `block in <main>'
    from ./tool/rbinstall.rb:754:in `each'
    from ./tool/rbinstall.rb:754:in `<main>'
make: *** [do-install-nodoc] Error 1
++ return 2
There has been an error while running make install. Halting the installation.

It seems your ruby installation is missing psych (for YAML output).

To eliminate this warning, please install libyaml and reinstall your ruby.

/Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require': dlopen(/Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/x86_64-darwin13/psych.bundle, 9): Library not loaded: /usr/local/lib/libyaml-0.2.dylib (LoadError)
  Referenced from: /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/x86_64-darwin13/psych.bundle
  Reason: image not found - /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/x86_64-darwin13/psych.bundle
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/psych.rb:1:in `<top (required)>'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/yaml.rb:5:in `<top (required)>'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems.rb:624:in `load_yaml'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/config_file.rb:328:in `load_file'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/config_file.rb:197:in `initialize'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/gem_runner.rb:74:in `new'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/gem_runner.rb:74:in `do_configuration'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/lib/ruby/2.2.0/rubygems/gem_runner.rb:39:in `run'
    from /Users/JAckerman/.rvm/rubies/ruby-2.2.4/bin/gem:21:in `<main>'

JAckerman@Jasons-MacBook-Pro parkme3.1 (staging) $ brew install libyaml

Warning: libyaml-0.1.6 already installed

JAckerman@Jasons-MacBook-Pro parkme3.1 (staging) $ brew reinstall libyaml

==> Reinstalling libyaml

Warning: libyaml-0.1.6 already installed

JAckerman@Jasons-MacBook-Pro parkme3.1 (staging) $ brew unlink libyaml

Unlinking /usr/local/Cellar/libyaml/0.1.6... 1 symlinks removed

JAckerman@Jasons-MacBook-Pro parkme3.1 (staging) $ brew reinstall libyaml

==> Reinstalling libyaml

Warning: libyaml-0.1.6 already installed, it's just not linked

JAckerman@Jasons-MacBook-Pro parkme3.1 (staging) $ brew link libyaml

Linking /usr/local/Cellar/libyaml/0.1.6... 5 symlinks created